Safety-bunk for logging-cars.



G. T. EAID.

SAFETY BUNK FOR LOGGING CARS.

APPLICATION FILED MAY 2, 1913.

1,071,609, Patented Aug. 26, 1913.

)3 2 SHEETSSHEET 1.

WITNE8SES: IN VENTOR fMM G. T. EAID.

SAFETY BUNK FOR LOGGING CARS.

APPLICATION IILED MAY 2, 1913.

Patented Aug. 26, 1913.

2 SHEETS-SHEET 2.

I/VVEA/TUR WI TNESSES:

WM WM A TTOR/VEY N1 canto CLAYTON T. EAID, OF PORTLAND, OREGON.

SAFETY-BUNK FOR LOGGING-CARS.

To all whom it may concern:

Be it known that I, CLAYTON T. EAID, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in SZLfQtY-BllIlkS for Logging-Cars, of which the following is a specification.

My invention relates to bunks to be applied to logging-cars and may be considered as a further amplification and development of my patents numbered 1,050,929, issued January 21st, 1913, and 1,055,150, issued March 4th of the same year. s

The primary object of my present invention is to provide a device of this kind thatis of simpler construction than my previous inventions, yet efficient in action, durable, inexpensive in first cost by reason of its lack of intricate mechanisms and economy of time in assemblage.

Other objects and advantages of my invention will be made clearly apparent in the following specification, taken in connection with the accompanying drawings forming part of this application, in which Figure 1 is a top plan view of my invention; Fig. 2 is a side elevation of same; Fig. 3 is a bottom plan view of same; Fig. 4 is an end elevation of Fig. 2; Fig. 5 is a perspective of the rack-bar with the operating lever attached thereto; Fig. 6 is a side elevation of one of the rolls to which the toe of the stake fastens when said stake is locked; Fig. 7 is a vertical section through line A A of Fig. 1; Fig. 8 is an enlarged longitudinal section through Fig. 1, show ing the stake fastened and holding a log, and the position of the lever which operates the rack-bar when said stake is locked; Fig. 9 is a similar view showing the stake released, and Fig. 10 is an enlarged side elevation of one of the cranks to which are pivoted the levers which operate the rackbars.

In the practice of my invention I employ beams 2, which are spaced apart by channeliron 3 adjacent the upper edges of said beams, braces 4, consisting of a bottom-plate and two perpendicular sides integral with said bot-tom plate; said braces being at Specification of Letters Patent.

Application filed May 2, 1913.

Patented Aug. 26,1913.

Serial No. 765,011.

tached adjacent the ends and bottom portions of said beams, and brace 5 of similar construction to braces 4 attached to the beams intermediate said braces 4; said beams, channel-iron, and braces being fastened together by means of rivets 6.

Secured to the inside of plates 2 and pass ing longitudinally thereof at convenient lengths are angle-irons 7 placed parallel to channel-iron 3 at such vertical distance therefrom as to conform with the diameter of pins 8 which are integral with stakes 9 for purposes hereinafter shown and explained.

Passing from the ends of channel-iron 3 to convenient distances are central longitudinal slots 10 equal in lateral dimensions to the thickness of stakes 9 which fit into said slots, thuspreventing said stakes from lateral motion; the vertical and longitudinal motion being governed by pins 8 sliding between beams 2, channel-iron 3 and angleirons 7 Slidably mounted intermediate beams 2 and resting on braces 4 and 5 respectively are rack-bars 11 with teeth 12 integral there with, and perforated lugs 13 forming one end thereof; the perforations 14 being engaged by trunnions 15 of levers 16 which are pivotally attached to one of the arms of cranks 17; the opposite arms of said cranks being pivoted to and passing through one of the walls of beams 2 and braces t respectively; each of said cranks being attached at diagonally opposite points with relation to the other.

Placed superjacent the raclcbars and revolubly mounted horizontally intermediate beams 2, are rolls 18 which engage toes 20 of stakes 9 when said stakes are in the position shown in Fig. 8;. said toes are held in such position by the pressure of teeth 12 against them; the tendency of the pressure of the logs against the upper portions of stakes 9 being to hold toes 20 against teeth 12 of rack-bars 11 and said rolls 18. It will be noted that. in Fig. 8 the centers of the arms of cranks 17 and lugs 13 of rackbars 11 are in longitudinal alinement; when said centers are in this relation to each other, one of the teeth of the rack-bar presses Cir against toe 20 of stake 9 and locks said stake in position to prevent the logs from rolling off the bunk. locked as shown in Fig. 9 the centers of the arms of cranks 17 are in vertical alinement with each other and the edges of teeth 12 of rack-bar 11 are m perpendlcularalineinent wlth points on the periphery of rolls 18; it will be noted that the width of teeth 12 is equal in dimensions with the diameter" of said rolls, thus makmg the space between 1 the teeth the same width as the space intermediate the rolls in order to allow the pressure of the logs to trip the stakes when the toes are disengaged from the rolls when the rack-bar is released by manual operation of.

applied to plat-form cars said bunks are attachcd by means of Ushapcd bolts passing through apertures 22. W hen the bunks are so attached the stakes are locked in the position shown in Fig. 8 and the logs piled thereon to any he1ght consistent with safety and convenience. The logs are usually piled in such order that the second tier rests bctween the spaces formed by the logs of the lower tier and each tier diminishing by one log until but a single space is left and one 1 log placed therein which completes the pile. To release the stakes and allow the logs to unload it is necessary for the operator to release stakes 9 by lifting levers 16 from:

the position shown in Fig. 8 to the position indicated in Fig. 9 which brings the toes of said stakes in vertical alinem ent with the space between two of rolls 18; when forced into said position by the pressure of the logs against stakes 9, said stakes fall downward to the posit-ion indicated in Fig. 9, thus allowing the logs to roll off the bunks instantly.

It is obvious from the construction of my invention that stakes 9 can be placed in several longitudinal posit-ions; said positions being predetermined by the number of teeth in the rack-bars and the number of rolls superjacent said rack-bars. These various positions will prove of great convenience in adjusting the stakes to engage the first tier of logs. My improved bunks are so constructed that the stakes can only be released by manual operation and cannot disengage accidentally as will be discerned by a close observation of the operating mechanisms in Fig. 8. In said figure it will be seen that the greater the pressure on the stakes, the firmer toes Q0 of said stakes press against the rolls which engage said toes, hence the greater the pressure on the stakes, the

l/Vhen the ra.ckbar is un-f 1f attached to greater the tendency of said stakes to remain locked. Another salient feature of my invention is that it serves as a safety appliance for workmen who operate such devices, as well as being a mechanism of great utility; the feature of safety residing in the fact. that the stakes can only be released at the opposite side of the car from where the workman stands, thus preventing the logs from rolling on the operator and causing him injury.

My improved bunk may be constructed of any material and made of any size deemed suitable for such a device, and while I have described and illustrated a preferred form of construction and combination of elements considered essential in materializing my invention, I desire to include in this application all mechanical equivalents and substitutes that may be fairly considered to lie within the scope and purview of my inven tion as defined in the appended claims.

Having thus fully described my invention, so that others skilled in the art to which it appertains may be enabled to construct and use the same, what I claim and desire to secure by Letters Patent, is:

1. In a device of the character described, the combination of beams spaced apart by means of a channel-iron and braces, anglelrons attached to said beams parallel with the channel-iron, central longitudinal slots adjacent the ends of said channcl-iron,

stakes passing through said slots, pins attached to said stakes, said pins passing between the spaces formed intermediate said channel-iron and angle-irons, rack-bars slidably mounted intermediate the lower portions of the beams and resting on the braces, rolls revolubly attached to the beams superjacent the rack-bars, said rolls being adapted to engage the toes of the stakes, and means to lock and release said stakes, substantially as described.

2. In a device of the character described. the combination of beams spaced apart by means of a channel-iron riveted to said beams intermediate their upper edges and braces passing beneath and overlapping the outside portions of said beams, angle-irons-a attached to said beams parallel with said channel-iron, central longitudinal slots adjacent the ends of said channel-iron, stakes passing through said slots, pins attached to said stakes, said pins passing between the spaces formed intermediate said channeliron and angle-irons, rack-bars slidablv mounted intermediate the lower portion of the beams and resting on the braces, rolls revolubly attached to the beams slmerjacent the rack-bars, said rolls being adapted to engage the toes of the stakes, and means to lock and release said stakes, substantially as described.

Cir

3. In a device of the character described, the combination of beams spaced apart by means of a channel iron riveted to said beams intermediate their upper edges and braces passing beneath and overlapping the outside portions of said beams, angle-irons attached to said beams parallel with said channel-iron, central longitudinal slots adjacent the ends of said channel-iron, stakes passing through said slots, pins attached to said stakes, said pins passing between the spaces formed intermediate said channeliron and angle-irons for the purpose of guiding the longitudinal motion of said stakes, rack-bars slidably mounted intermediate the lower portions of the beams and resting on the braces, rolls revolubly attached to the beams superjacent the rack-bars, said rolls being adapted to engage the toes of the stakes, and means to lock and release said stakes, substantially as described.

a. In a device of the character described, the combination of beams spaced apart by means of a channel-iron riveted to said beams intermediate their upper edges and braces passing beneath and overlapping the outside portions of said beams, angle-irons attached to said beams parallel with said channel-iron, central longitudinal slots adjacent the ends of said channel-iron, stakes adapted to engage with logs passing through said slots, pins attached to said stakes, said pins passing between the spaces formed intermediate said channel-iron and angleirons for the purpose of guiding the longitudinal motion of said stakes, rack-bars slidably mounted intermediate the lower portions of the beams and resting on the braces, rolls revolubly attached superjacent the rack-bars, the spaces between the teeth of said rack-bars being equivalent to the space intermediate said rolls in order to allow the pressure of the logs to trip the stakes, said rolls being adapted to engage the toes of said stakes, and means to lock and release said stakes, substantially as decribed.

5. In a device of the character described, the combination of beams spaced apart by means of a channel-iron riveted to said beams intermediate their upper edges and braces passing beneath and overlapping the outside portions of said beams, angle-irons attached to said beams parallel with said channel-iron, central longitudinal slots adjacent the ends of said channel-iron, stakes adapted to engage with logs passing through said slots, pins attached to said stakes, said pins passing between the spaces formed intermediate said channel-iron and angle-irons for the purpose of guiding the longitudinal motion of said stakes, rack-bars slidably mounted intermediate the lower portions of the beams and resting on the braces, rolls revolubly attached superjacent the rack-bars, said rolls being adapted to engage the toes of said stakes when such stakes are locked, cranks pivoted to the beams at diagonally opposite points, levers pivoted to said cranks and said rack-bars, said levers serving to lock and release said stakes when said levers are actuated by manual effort, substantially as described.

6. In a device of the character described, the combination of beams spaced apart by means of a channel-iron riveted to said beams intermediate their upper edges and braces passing beneath and overlapping the outside portions of said beams, angle-irons attached to said beams parallel with said channel-iron, central longitudinal slots adjacent the ends of said channel-iron, stakes adapted to engage with logs passing through said slots, pins attached to said stakes, said pins passing between the spaces formed intermediate said channel-iron and angleirons for the purpose of guiding the longitudinal motion of said stakes, rack-bars slidably mounted intermediate the lower portions of the beams and restin on the braces, a plurality of rolls revolubly attached to the beams superjacent the rackbars, said rolls being adapted to engage the toes of said stakes and being equal in number to the teeth of the rack-bars in order that the stakes may be longitudinally adjusted to the width of one tier of logs, said rolls being adapted to engage the toes of said stakes when said stakes are locked, cranks pivoted to the beams at diagonally opposite points, levers pivoted to said cranks and said raclcbars, said levers serving to lock and release said stakes when said levers are actuated by manual eii'ort, substantially as described.

7. In a device of the character described, the combination of beams spaced apart by means of a channel-iron riveted to said beams intermediate their upper edges and braces passing beneath and overlapping the outside portions of said beams, angle-irons attached to said beams parallel with said channel-iron forming runways for stakes, central longitudinal slots adjacent the ends of said channel-iron, stakes adapted to engage with logs passing through said slots, pins forming part of said stakes, said pins passing between the spaces formed by the channel-iron and angle-irons for the purpose of guiding the longitudinal motion of said stakes, rack-bars slidably mounted intermediate the lower portions of the beams and resting on the braces, a plurality of rolls revolubly attached to the beams superjacent the rack-bars, said rolls being adapted to engage the toes of said stakes when such stakes are locked, cranks pivoted to each of the beams at diagonally opposite points,

levers pivoted to said cranks and said raekas my own, I hereunto aflix my signature in bars, each 01: said levers being arranged to the presence of two subscribing Witnesses. epeiate the stake at the end of the bunk 7r r remote therefrom when said lever is actu- GLA1 EON LAID 5 ated by manual effort, substantially as de- Witnesses:

scribed. PETER HABERLIN, In testimony that I claim the foregoing W. PICKERING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

